Maybe? I mean, knowing Lysa at that particular point, she was too far gone to care about what anyone said. Unlike her brother, Lysa refused to listen to any outside advice when she set her mind on something. That was why she was considered the trouble maker out of the duo, seeing as she NEVER wanted to listen. Yerbol was at least willing to sit down and hear what someone else had to say. 

I do kinda wish I could explore Lysa as a character, but I think it would be super tacky to resurrect her from a death that was pretty certain.